Docker Workstation with vs Code

Dockerfile

# based on https://github.com/mikadosoftware/workstation

FROM ubuntu:18.04

RUN apt-get update && \
  apt-get install -y openssh-server \
  x11-apps

RUN mkdir -p /var/run/sshd
RUN sed -ri 's/UsePAM yes/#UsePAM yes/g' /etc/ssh/sshd_config
RUN sed -ri 's/^#AllowTcpForwarding\s+.*/AllowTcpForwarding yes/g' /etc/ssh/sshd_config
RUN sed -ri 's/^#X11Forwarding\s+.*/X11Forwarding yes/g' /etc/ssh/sshd_config
RUN sed -ri 's/^#X11UseLocalhost\s+.*/X11UseLocalhost no/g' /etc/ssh/sshd_config

RUN apt-get install -y sudo
RUN adduser --disabled-password --gecos "" user
RUN usermod -aG sudo user
RUN echo "user ALL=(root) NOPASSWD:ALL" > /etc/sudoers.d/user && \
    chmod 0440 /etc/sudoers.d/user

# install vs code and extensions
RUN apt-get install -y software-properties-common apt-transport-https wget
RUN wget -q https://packages.microsoft.com/keys/microsoft.asc -O- | apt-key add -
RUN add-apt-repository "deb [arch=amd64] https://packages.microsoft.com/repos/vscode stable main"
RUN apt-get install -y code libasound2

USER user
RUN code --install-extension PeterJausovec.vscode-docker --force

USER root
EXPOSE 22
CMD ["/usr/sbin/sshd", "-D"]

# build with
#   docker build -t code-devbox .
# and run with
#   docker run -d -p 2222:22 -v ~/.ssh/id_rsa.pub:/home/user/.ssh/authorized_keys code-devbox
# and connect with
#   ssh -X user@localhost -p 2222